| <!DOCTYPE HTML> |
| <!-- NewPage --> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc --> |
| <title>RepeatUnion (Apache Calcite API)</title> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> |
| <link rel="stylesheet" type="text/css" href="../../../../../jquery/jquery-ui.css" title="Style"> |
| <script type="text/javascript" src="../../../../../script.js"></script> |
| <script type="text/javascript" src="../../../../../jquery/jszip/dist/jszip.min.js"></script> |
| <script type="text/javascript" src="../../../../../jquery/jszip-utils/dist/jszip-utils.min.js"></script> |
| <!--[if IE]> |
| <script type="text/javascript" src="../../../../../jquery/jszip-utils/dist/jszip-utils-ie.min.js"></script> |
| <![endif]--> |
| <script type="text/javascript" src="../../../../../jquery/jquery-3.3.1.js"></script> |
| <script type="text/javascript" src="../../../../../jquery/jquery-migrate-3.0.1.js"></script> |
| <script type="text/javascript" src="../../../../../jquery/jquery-ui.js"></script> |
| </head> |
| <body> |
| <script type="text/javascript"><!-- |
| try { |
| if (location.href.indexOf('is-external=true') == -1) { |
| parent.document.title="RepeatUnion (Apache Calcite API)"; |
| } |
| } |
| catch(err) { |
| } |
| //--> |
| var data = {"i0":10,"i1":10,"i2":10,"i3":10,"i4":10}; |
| var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],8:["t4","Concrete Methods"]}; |
| var altColor = "altColor"; |
| var rowColor = "rowColor"; |
| var tableTab = "tableTab"; |
| var activeTableTab = "activeTableTab"; |
| var pathtoroot = "../../../../../"; |
| var useModuleDirectories = true; |
| loadScripts(document, 'script');</script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <header role="banner"> |
| <nav role="navigation"> |
| <div class="fixedNav"> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="topNav"><a id="navbar.top"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div> |
| <a id="navbar.top.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../index.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="class-use/RepeatUnion.html">Use</a></li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList" id="allclasses_navbar_top"> |
| <li><a href="../../../../../allclasses.html">All Classes</a></li> |
| </ul> |
| <ul class="navListSearch"> |
| <li><label for="search">SEARCH:</label> |
| <input type="text" id="search" value="search" disabled="disabled"> |
| <input type="reset" id="reset" value="reset" disabled="disabled"> |
| </li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_top"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li><a href="#nested.class.summary">Nested</a> | </li> |
| <li><a href="#field.summary">Field</a> | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li><a href="#field.detail">Field</a> | </li> |
| <li><a href="#constructor.detail">Constr</a> | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a id="skip.navbar.top"> |
| <!-- --> |
| </a></div> |
| <!-- ========= END OF TOP NAVBAR ========= --> |
| </div> |
| <div class="navPadding"> </div> |
| <script type="text/javascript"><!-- |
| $('.navPadding').css('padding-top', $('.fixedNav').css("height")); |
| //--> |
| </script> |
| </nav> |
| </header> |
| <!-- ======== START OF CLASS DATA ======== --> |
| <main role="main"> |
| <div class="header"> |
| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel.core</a></div> |
| <h2 title="Class RepeatUnion" class="title">Class RepeatUnion</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../AbstractRelNode.html" title="class in org.apache.calcite.rel">org.apache.calcite.rel.AbstractRelNode</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../BiRel.html" title="class in org.apache.calcite.rel">org.apache.calcite.rel.BiRel</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.core.RepeatUnion</li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code>java.lang.Cloneable</code>, <code><a href="../../plan/RelOptNode.html" title="interface in org.apache.calcite.plan">RelOptNode</a></code>, <code><a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="../../adapter/enumerable/EnumerableRepeatUnion.html" title="class in org.apache.calcite.adapter.enumerable">EnumerableRepeatUnion</a></code>, <code><a href="../logical/LogicalRepeatUnion.html" title="class in org.apache.calcite.rel.logical">LogicalRepeatUnion</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public abstract class <span class="typeNameLabel">RepeatUnion</span> |
| extends <a href="../BiRel.html" title="class in org.apache.calcite.rel">BiRel</a></pre> |
| <div class="block">Relational expression that computes a repeat union (recursive union in SQL |
| terminology). |
| |
| <p>This operation is executed as follows: |
| |
| <ul> |
| <li>Evaluate the left input (i.e., seed relational expression) once. For |
| UNION (but not UNION ALL), discard duplicated rows. |
| |
| <li>Evaluate the right input (i.e., iterative relational expression) over and |
| over until it produces no more results (or until an optional maximum number |
| of iterations is reached). For UNION (but not UNION ALL), discard |
| duplicated results. |
| </ul> |
| |
| <p>NOTE: The current API is experimental and subject to change without |
| notice.</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="nested.class.summary"> |
| <!-- --> |
| </a> |
| <h3>Nested Class Summary</h3> |
| <ul class="blockList"> |
| <li class="blockList"><a id="nested.classes.inherited.from.class.org.apache.calcite.rel.RelNode"> |
| <!-- --> |
| </a> |
| <h3>Nested classes/interfaces inherited from interface org.apache.calcite.rel.<a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></h3> |
| <code><a href="../RelNode.Context.html" title="interface in org.apache.calcite.rel">RelNode.Context</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="field.summary"> |
| <!-- --> |
| </a> |
| <h3>Field Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#all">all</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Whether duplicates are considered.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#iterationLimit">iterationLimit</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Maximum number of times to repeat the iterative relational expression; |
| negative value means no limit, 0 means only seed will be evaluated</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="fields.inherited.from.class.org.apache.calcite.rel.BiRel"> |
| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.calcite.rel.<a href="../BiRel.html" title="class in org.apache.calcite.rel">BiRel</a></h3> |
| <code><a href="../BiRel.html#left">left</a>, <a href="../BiRel.html#right">right</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a id="fields.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.calcite.rel.<a href="../AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3> |
| <code><a href="../AbstractRelNode.html#digest">digest</a>, <a href="../AbstractRelNode.html#id">id</a>, <a href="../AbstractRelNode.html#rowType">rowType</a>, <a href="../AbstractRelNode.html#traitSet">traitSet</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colSecond" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.RelTraitSet,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,boolean,int)">RepeatUnion</a></span>​(<a href="../../plan/RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a> cluster, |
| <a href="../../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traitSet, |
| <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> seed, |
| <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> iterative, |
| boolean all, |
| int iterationLimit)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deriveRowType()">deriveRowType</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>double</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></span>​(<a href="../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns an estimate of the number of rows this relational expression will |
| return.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#explainTerms(org.apache.calcite.rel.RelWriter)">explainTerms</a></span>​(<a href="../RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</code></th> |
| <td class="colLast"> |
| <div class="block">Describes the inputs and attributes of this relational expression.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getIterativeRel()">getIterativeRel</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSeedRel()">getSeedRel</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rel.BiRel"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.calcite.rel.<a href="../BiRel.html" title="class in org.apache.calcite.rel">BiRel</a></h3> |
| <code><a href="../BiRel.html#childrenAccept(org.apache.calcite.rel.RelVisitor)">childrenAccept</a>, <a href="../BiRel.html#getInputs()">getInputs</a>, <a href="../BiRel.html#getLeft()">getLeft</a>, <a href="../BiRel.html#getRight()">getRight</a>, <a href="../BiRel.html#replaceInput(int,org.apache.calcite.rel.RelNode)">replaceInput</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.calcite.rel.<a href="../AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></h3> |
| <code><a href="../AbstractRelNode.html#accept(org.apache.calcite.rel.RelShuttle)">accept</a>, <a href="../AbstractRelNode.html#accept(org.apache.calcite.rex.RexShuttle)">accept</a>, <a href="../AbstractRelNode.html#collectVariablesSet(java.util.Set)">collectVariablesSet</a>, <a href="../AbstractRelNode.html#collectVariablesUsed(java.util.Set)">collectVariablesUsed</a>, <a href="../AbstractRelNode.html#computeDigest()">computeDigest</a>, <a href="../AbstractRelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner)">computeSelfCost</a>, <a href="../AbstractRelNode.html#computeSelfCost(org.apache.calcite.plan.RelOptPlanner,org.apache.calcite.rel.metadata.RelMetadataQuery)">computeSelfCost</a>, <a href="../AbstractRelNode.html#copy(org.apache.calcite.plan.RelTraitSet,java.util.List)">copy</a>, <a href="../AbstractRelNode.html#equals(java.lang.Object)">equals</a>, <a href="../AbstractRelNode.html#explain(org.apache.calcite.rel.RelWriter)">explain</a>, <a href="../AbstractRelNode.html#getChildExps()">getChildExps</a>, <a href="../AbstractRelNode.html#getCluster()">getCluster</a>, <a href="../AbstractRelNode.html#getCollationList()">getCollationList</a>, <a href="../AbstractRelNode.html#getConvention()">getConvention</a>, <a href="../AbstractRelNode.html#getCorrelVariable()">getCorrelVariable</a>, <a href="../AbstractRelNode.html#getDescription()">getDescription</a>, <a href="../AbstractRelNode.html#getDigest()">getDigest</a>, <a href="../AbstractRelNode.html#getExpectedInputRowType(int)">getExpectedInputRowType</a>, <a href="../AbstractRelNode.html#getId()">getId</a>, <a href="../AbstractRelNode.html#getInput(int)">getInput</a>, <a href="../AbstractRelNode.html#getQuery()">getQuery</a>, <a href="../AbstractRelNode.html#getRelTypeName()">getRelTypeName</a>, <a href="../AbstractRelNode.html#getRows()">getRows</a>, <a href="../AbstractRelNode.html#getRowType()">getRowType</a>, <a href="../AbstractRelNode.html#getTable()">getTable</a>, <a href="../AbstractRelNode.html#getTraitSet()">getTraitSet</a>, <a href="../AbstractRelNode.html#getVariablesSet()">getVariablesSet</a>, <a href="../AbstractRelNode.html#getVariablesStopped()">getVariablesStopped</a>, <a href="../AbstractRelNode.html#hashCode()">hashCode</a>, <a href="../AbstractRelNode.html#isDistinct()">isDistinct</a>, <a href="../AbstractRelNode.html#isKey(org.apache.calcite.util.ImmutableBitSet)">isKey</a>, <a href="../AbstractRelNode.html#isValid(boolean)">isValid</a>, <a href="../AbstractRelNode.html#isValid(org.apache.calcite.util.Litmus,org.apache.calcite.rel.RelNode.Context)">isValid</a>, <a href="../AbstractRelNode.html#metadata(java.lang.Class,org.apache.calcite.rel.metadata.RelMetadataQuery)">metadata</a>, <a href="../AbstractRelNode.html#onRegister(org.apache.calcite.plan.RelOptPlanner)">onRegister</a>, <a href="../AbstractRelNode.html#recomputeDigest()">recomputeDigest</a>, <a href="../AbstractRelNode.html#register(org.apache.calcite.plan.RelOptPlanner)">register</a>, <a href="../AbstractRelNode.html#sole(java.util.List)">sole</a>, <a href="../AbstractRelNode.html#toString()">toString</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="field.detail"> |
| <!-- --> |
| </a> |
| <h3>Field Detail</h3> |
| <a id="all"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>all</h4> |
| <pre>public final boolean all</pre> |
| <div class="block">Whether duplicates are considered.</div> |
| </li> |
| </ul> |
| <a id="iterationLimit"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>iterationLimit</h4> |
| <pre>public final int iterationLimit</pre> |
| <div class="block">Maximum number of times to repeat the iterative relational expression; |
| negative value means no limit, 0 means only seed will be evaluated</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(org.apache.calcite.plan.RelOptCluster,org.apache.calcite.plan.RelTraitSet,org.apache.calcite.rel.RelNode,org.apache.calcite.rel.RelNode,boolean,int)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>RepeatUnion</h4> |
| <pre>protected RepeatUnion​(<a href="../../plan/RelOptCluster.html" title="class in org.apache.calcite.plan">RelOptCluster</a> cluster, |
| <a href="../../plan/RelTraitSet.html" title="class in org.apache.calcite.plan">RelTraitSet</a> traitSet, |
| <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> seed, |
| <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> iterative, |
| boolean all, |
| int iterationLimit)</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ============ METHOD DETAIL ========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a id="estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>estimateRowCount</h4> |
| <pre class="methodSignature">public double estimateRowCount​(<a href="../metadata/RelMetadataQuery.html" title="class in org.apache.calcite.rel.metadata">RelMetadataQuery</a> mq)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../RelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">RelNode</a></code></span></div> |
| <div class="block">Returns an estimate of the number of rows this relational expression will |
| return. |
| |
| <p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use |
| <a href="../metadata/RelMetadataQuery.html#getRowCount(org.apache.calcite.rel.RelNode)"><code>RelMetadataQuery.getRowCount(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a chance to |
| override the rel's default ideas about row count.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../RelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></code> in interface <code><a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../AbstractRelNode.html#estimateRowCount(org.apache.calcite.rel.metadata.RelMetadataQuery)">estimateRowCount</a></code> in class <code><a href="../AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Estimate of the number of rows this relational expression will |
| return</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="explainTerms(org.apache.calcite.rel.RelWriter)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>explainTerms</h4> |
| <pre class="methodSignature">public <a href="../RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> explainTerms​(<a href="../RelWriter.html" title="interface in org.apache.calcite.rel">RelWriter</a> pw)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../AbstractRelNode.html#explainTerms(org.apache.calcite.rel.RelWriter)">AbstractRelNode</a></code></span></div> |
| <div class="block">Describes the inputs and attributes of this relational expression. |
| Each node should call <code>super.explainTerms</code>, then call the |
| <a href="../RelWriter.html#input(java.lang.String,org.apache.calcite.rel.RelNode)"><code>RelWriter.input(String, RelNode)</code></a> |
| and |
| <a href="../externalize/RelWriterImpl.html#item(java.lang.String,java.lang.Object)"><code>RelWriterImpl.item(String, Object)</code></a> |
| methods for each input and attribute.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../BiRel.html#explainTerms(org.apache.calcite.rel.RelWriter)">explainTerms</a></code> in class <code><a href="../BiRel.html" title="class in org.apache.calcite.rel">BiRel</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pw</code> - Plan writer</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Plan writer for fluent-explain pattern</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getSeedRel()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSeedRel</h4> |
| <pre class="methodSignature">public <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> getSeedRel()</pre> |
| </li> |
| </ul> |
| <a id="getIterativeRel()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getIterativeRel</h4> |
| <pre class="methodSignature">public <a href="../RelNode.html" title="interface in org.apache.calcite.rel">RelNode</a> getIterativeRel()</pre> |
| </li> |
| </ul> |
| <a id="deriveRowType()"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>deriveRowType</h4> |
| <pre class="methodSignature">protected <a href="../type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> deriveRowType()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../AbstractRelNode.html#deriveRowType()">deriveRowType</a></code> in class <code><a href="../AbstractRelNode.html" title="class in org.apache.calcite.rel">AbstractRelNode</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </main> |
| <!-- ========= END OF CLASS DATA ========= --> |
| <footer role="contentinfo"> |
| <nav role="navigation"> |
| <!-- ======= START OF BOTTOM NAVBAR ====== --> |
| <div class="bottomNav"><a id="navbar.bottom"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> |
| <a id="navbar.bottom.firstrow"> |
| <!-- --> |
| </a> |
| <ul class="navList" title="Navigation"> |
| <li><a href="../../../../../index.html">Overview</a></li> |
| <li><a href="package-summary.html">Package</a></li> |
| <li class="navBarCell1Rev">Class</li> |
| <li><a href="class-use/RepeatUnion.html">Use</a></li> |
| <li><a href="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList" id="allclasses_navbar_bottom"> |
| <li><a href="../../../../../allclasses.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_bottom"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li><a href="#nested.class.summary">Nested</a> | </li> |
| <li><a href="#field.summary">Field</a> | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li><a href="#field.detail">Field</a> | </li> |
| <li><a href="#constructor.detail">Constr</a> | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a id="skip.navbar.bottom"> |
| <!-- --> |
| </a></div> |
| <!-- ======== END OF BOTTOM NAVBAR ======= --> |
| </nav> |
| <p class="legalCopy"><small>Copyright © 2012–2019 <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved.</small></p> |
| </footer> |
| </body> |
| </html> |
